MESON Chess Problem Database
Problem Display
PID: 110105 (6B1/4rrP1/3N1P2/4PRB1/8/3kP3/1p3R2/1NbK4 w - - 0 1)
Kopaev, Viacheslav Georgievich
Shakhmaty, 1978
#2
11 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxf6
- 2.Bc4#
- 1...Rxg7
- 2.Bc4#
- 1...Rf8
- 2.Bc4#
- 1...Bd2
- 2.Rxd2#
- 1...Rxf6
- Tries
- 1.Bh7?
- threat
- 2.R5f3#
- 1...Rxe5
- 2.Rxe5#
- 1...Rxf6
- 2.Rxf6#
- 1...Bxe3
- 2.R5f4#
- 1...Rxg7!
- threat
- 1.R5f3?
- threat
- 2.Bh7#
- 1...Rxf6
- 2.Bc4#
- 1...Rxg7
- 2.Bc4#
- 1...Bxe3
- 2.Rd2#
- 1...Rxe5!
- threat
- 1.fxe7?
- 1...Rxf5
- 2.Bc4#
- 1...Rxe7
- 2.Bc4#
- 1...Rxg7
- 2.Bc4#
- 1...Rf6
- 2.Bc4#
- 1...Rf8
- 2.Bc4#
- 1...Bd2
- 2.Rxd2#
- 1...Bxe3!
- 1...Rxf5
- 1.Bh7?
- Keys
- 1.R5f4!
- threat
- 2.Rd4#
- 1...Kxe3
- 2.R2f3#
- 1...Bxe3
- 2.Bh7#
- threat
- 1.R5f4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(e);OGATE,XP(I)::B(K)
- R(e);OGATE,XP(J)::B(K)
- R(e);OGATE::B(K)
- B(a);N_GUARD::R1(C),XB(a)
- Tries
- Try
- B(K);
- Threat
- B(K)+R(F)
- Vars
- R(d);OGATE,XP(E)::B(K)+R(F),XR(d)
- R(e);OGATE,XP(I)::B(K)+R(F),XR(e)
- B(a);SBLOCK,XP(D)::B(K)+R(F)
- Refutation
- R(e);XP(J)
- Try
- R(F);
- Threat
- B(K)
- Vars
- R(e);OGATE,XP(I)::B(K)
- R(e);OGATE,XP(J)::B(K)
- B(a);N_GUARD,P_SPINB(a),XP(D)::R1(C)
- Refutation
- R(d);XP(E)
- Try
- P(I);XR(d)
- Vars
- R(e);OGATE,XR(F)::B(K)
- R(e);OGATE,XP(I)::B(K)
- R(e);OGATE,XP(J)::B(K)
- R(e);OGATE::B(K)
- B(a);N_GUARD::R1(C),XB(a)
- Refutation
- B(a);XP(D)
- Try
- Actual
- R(F);
- Threat
- R1(F)
- Vars
- K(c);OGATEB,P-FLIGHT,XP(D)::R1(C)
- B(a);SBLOCK,XP(D)::B(K)
Developed and maintained by Brian Stephenson.
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